I've been working all week trying to fuigure this out and I finished it. This way of scrolling reduces lag alot as there are only two platforms being used. It has no known glitches at the time (let me know if you find one(I will try(and probably suceed)in fixing it)). Download to view scripts. I got the I dea from archmages project perfect scrolling engine 2.0 UPDATE: fixed all glitches; you can view new version here:http://scratch.mit.edu/projects/b_g/235369